Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC9BIW callsign genealogy
Currently held by Kringle, Peter G
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by KC9BIW's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KC9BIW.
All historical holders
Every license row we've seen with the callsign KC9BIW, oldest first.
- Kringle, Peter G MT2002-03-25 → cancelled 2007-04-21
- KRINGLE, PETER G WA2012-02-17 → cancelled 2014-09-23